Center letter: i
Outer letter: a g j m n u
Answers (47):
  unjamming
  again
  aging
  aiming
  angina
  anima
  gagging
  gain
  gaining
  gamin
  gaming
  ganging
  gauging
  gigging
  ginning
  gumming
  gunning
  iguana
  imaging
  imagining
  imam
  inning
  jagging
  jamming
  jigging
  jinn
  jinni
  jugging
  magi
  maim
  maiming
  main
  managing
  mania
  manning
  miming
  mini
  minim
  minima
  minimum
  mining
  mugging
  nagging
  naming
  ninja
  umami
  unmanning